class_docstr: Tests the Shots class.
docstr: Test that the string representation is correct.
docstr_tok: ["Test","that","the","string","representation","is","correct","."]
code: def test_str(self, expected_str, shots_obj):
      """Test that the string representation is correct."""
      assert expected_str == str(shots_obj)
  
imports: import copy
  import pytest
  from pennylane.measurements import Shots, ShotCopies
label_desc: Use image node_id 6 for calling the TestShotsConstruction obj's underlying member method code with example usage: obj.test_str(expected_str, shots_obj) without return types